Many companies are now developing new types of personal aircraft.
Some of these designs will work well and have excellent characteristics for some markets, however they all make use of conventional fans or propellers.
Some of the largest potential markets for air transport are in urban travel or commuting. Both of these require very frequent, widespread vehicle use and a close proximity to people.
It is immediately clear that an exposed rotating blade, such as a propeller, cannot be used in many of these situations because of the danger they pose to people on the ground. A properly enclosed fan will reduce this danger (although they tend to introduce aerodynamic problems, such as flow separation, which lead to efficiency and control issues).
Neither propellers nor ducted fans are quiet enough to be used regularly around people. Noisiness is an inherent property of rapidly rotating blades and whilst it can be mitigated, it remains too loud to be used in most situations where a car can be used.
Volerian has created a propulsion system that is cheap to manufacture and is much quieter and safer than any fan or propeller technology. As a result of this we are now able to make aircraft that can be used in any situation in which a car can be used and much more.
The use of batteries and recharging stations will rapidly help reduce reliance on fossil fuels and a significant reduction in the quantity of roads and set transport infrastructure may also be possible.
In addition to local travel there will be aircraft adapted for greater speed and range. These will have the ability to take off vertically but will also be able to take off from airstrips. Short conventional take-off will allow considerable additional weight such as extra battery packs or small turbines which can be automatically attached at airports. This allows the aircraft to pick someone up at home using VTOL and then land at an airport to be adapted for longer flight without the occupant needing to leave the aircraft. Alternatively the aircraft can simply recharge by landing along the way (which isn't a problem for low flying, electric VTOL). This will still provide door to door travel times that are faster than a lot of regional jet routes.